Instability of Embankment Slopes Due to Overflow and Drawdown
Establishing a geotechnical rationale for an embankment overflow is challenging. The occurrence of embankment overflow is deemed unlikely since the initial highest water level of the embankment is assumed to be fixed as a designed flood water level or a seasonal flood-limited water level when calcul...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/19/3402 |
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| author | Jaehong Kim Yongmin Kim Alfrendo Satyanaga |
| author_facet | Jaehong Kim Yongmin Kim Alfrendo Satyanaga |
| author_sort | Jaehong Kim |
| collection | DOAJ |
| description | Establishing a geotechnical rationale for an embankment overflow is challenging. The occurrence of embankment overflow is deemed unlikely since the initial highest water level of the embankment is assumed to be fixed as a designed flood water level or a seasonal flood-limited water level when calculating the rainfall amount in the hydrological stability analysis. However, the possibility of overtopping can be assessed by employing copula functions. This approach takes into account the return frequency of overflow and the fluctuation of probable water levels due to climate change rather than relying on the fixed highest water levels of an embankment. This study examined the effect of tensile cracks leading to the shallow failure of embankment slopes during drawdown and placed an emphasis on the vulnerability of embankment slopes due to extreme rainfall events. Throughout the comprehensive numerical simulations, it was found that the critical period for embankment slope collapse was immediately after drawdown for the upstream slope and during the initial stages of overflow for the downstream slope. |
| first_indexed | 2024-03-09T13:50:42Z |
| format | Article |
| id | doaj.art-0f10b92d07e34c9dba256ba74daaee06 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T13:50:42Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-0f10b92d07e34c9dba256ba74daaee062023-11-30T20:49:36ZengMDPI AGWater2073-44412023-09-011519340210.3390/w15193402Instability of Embankment Slopes Due to Overflow and DrawdownJaehong Kim0Yongmin Kim1Alfrendo Satyanaga2Department of Civil and Environmental Engineering, Dongshin University, Naju 58245, Republic of KoreaSchool of Engineering, University of Glasgow, Singapore 138683, SingaporeSchool of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, KazakhstanEstablishing a geotechnical rationale for an embankment overflow is challenging. The occurrence of embankment overflow is deemed unlikely since the initial highest water level of the embankment is assumed to be fixed as a designed flood water level or a seasonal flood-limited water level when calculating the rainfall amount in the hydrological stability analysis. However, the possibility of overtopping can be assessed by employing copula functions. This approach takes into account the return frequency of overflow and the fluctuation of probable water levels due to climate change rather than relying on the fixed highest water levels of an embankment. This study examined the effect of tensile cracks leading to the shallow failure of embankment slopes during drawdown and placed an emphasis on the vulnerability of embankment slopes due to extreme rainfall events. Throughout the comprehensive numerical simulations, it was found that the critical period for embankment slope collapse was immediately after drawdown for the upstream slope and during the initial stages of overflow for the downstream slope.https://www.mdpi.com/2073-4441/15/19/3402embankment risk analysishydrological analysisovertoppingdrawdowntension crackslope stability |
| spellingShingle | Jaehong Kim Yongmin Kim Alfrendo Satyanaga Instability of Embankment Slopes Due to Overflow and Drawdown Water embankment risk analysis hydrological analysis overtopping drawdown tension crack slope stability |
| title | Instability of Embankment Slopes Due to Overflow and Drawdown |
| title_full | Instability of Embankment Slopes Due to Overflow and Drawdown |
| title_fullStr | Instability of Embankment Slopes Due to Overflow and Drawdown |
| title_full_unstemmed | Instability of Embankment Slopes Due to Overflow and Drawdown |
| title_short | Instability of Embankment Slopes Due to Overflow and Drawdown |
| title_sort | instability of embankment slopes due to overflow and drawdown |
| topic | embankment risk analysis hydrological analysis overtopping drawdown tension crack slope stability |
| url | https://www.mdpi.com/2073-4441/15/19/3402 |
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